I have customized my Unity Launcher so that now have access to quicklists for different applications. To do that I followed the script posted here: What Custom Launchers and Unity Quicklists are available?
I added some of my most frequented websites to the firefox launcher. First time I opened one of them firefox asked me to add a security exception, which I did, but doesn't open the website, just a blank page with the following dialogue:
Welcome to (name of the website) To change this page, upload a new index.html to your private_html folder
I added a security exception of the website in mozilla advanced preferences, which works when opening it through the navigation bar in firefox, but not through the quicklist in Unity.